There are many sewage treatment processes at home and abroad, which are mainly divided into two types: activated sludge method and biofilm method. Our common ordinary aeration method, oxidation ditch method, A / B method, A2 / O method belong to the former, and the biological turntable The contact oxidation method belongs to the latter. The integrated sewage treatment equipment is a device that integrates a settling tank, a class I and II contact oxidation tank, a settling tank, and a sludge tank, and performs aeration and aeration in the class I and II contact oxidation tank to make contact oxidation The method and the activated sludge method are effectively combined, and have the advantages of both, and overcome the disadvantages of the two, so that the sewage treatment level is further improved.

advantage

1. Strong ability to resist impact load, the average residence time of contact oxidation method is more than 6 hours.

2. It has the ability to remove nitrogen and phosphorus, and can adjust the structure of the equipment to achieve the ability to treat industrial wastewater, domestic sewage, and urban sewage.

3. The fillers in the contact oxidation tank are mostly combined soft fillers, which are lightweight, high strength, stable physical and chemical properties, large specific surface area, strong biofilm adhesion ability, and high contact efficiency between sewage and biofilm.

4. In the contact oxidation tank, an aerator is used for aeration and aeration, so that the fiber bundles are constantly drifting, the aeration is uniform, and the growth of microorganisms is mature, which has the characteristics of the activated sludge method.

5. The effluent water quality is stable, the sludge output is small and easy to handle.

6. The submersible pump can be installed in the equipment to reduce engineering investment.

7. The equipment can be installed on the ground or buried underground. When buried in the ground, the upper cover can be used for greening, the plant area is small, and the ground structure is small.

8, easy to complete automatic control, simple management operations.

9, equipment can be connected to the car to make a mobile integrated sewage treatment equipment.

Disadvantage

1. It is not conducive to maintenance. After the equipment fails, it is not convenient to repair and replace. This is usually the most annoying of the owners.

2. Weak adaptability to the environment. We need to prevent freezing in winter, flood prevention in summer, and deep burial in the north, and do heat insulation treatment.

3. Due to the limitations of the equipment, the equipment can only be used in projects with relatively small amounts of wastewater.

4, equipment replacement packing and MBR membrane replacement cleaning cost accounting is relatively high.

5. The equipment is buried or exposed for a long time, it is easy to be corroded and its service life is greatly shortened.